2026 NPPES data Gynecology Physician NPI 1659358976 MD
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ELAINE EUSTIS, MD

Gynecology Physician in MT. PLEASANT, South Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
384
Medicare Part D claims · 90 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$440.95
20 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ELAINE EUSTIS, MD filed 384 Medicare Part D claims in 2023 as a Gynecology Physician in MT. PLEASANT, South Carolina, prescribing 76% generic.

384
Part D claims, 2023
76%
generic prescribing
$440.95
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ELAINE EUSTIS, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

384 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

ELAINE EUSTIS, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ELAINE EUSTIS, MD?

Quality data not reported

NPI registry status

Active

Issued 12/28/2005

NPI 1659358976

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

384 30% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in South Carolina

How Gynecology Physician compares to other specialties among South Carolina providers

South Carolina providers

Gynecology Physician share within South Carolina

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within South Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ELAINE EUSTIS, MD is a Gynecology Physician provider practicing in MT. PLEASANT, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659358976. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ELAINE EUSTIS, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 721 LONG POINT RD, MT. PLEASANT, SC, 29464, with a listed phone of (843) 793-9801. NPI 1659358976 was issued on 12/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EUSTIS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 384 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $54K in drug spend, split 24% brand-name and 76% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

721 LONG POINT RD
MT. PLEASANT, SC 29464

Provider Details

NPI 1659358976
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 12/28/2005

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ELAINE EUSTIS, MD. Source: openpaymentsdata.cms.gov.

Total received

$441

Largest payer

Astellas Pharma US Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

ELAINE EUSTIS, MD — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 384 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

384
Total Claims
$54K
Total Drug Cost
90
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
824
Total Day Supply
23,624
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$39K
Generic Drug Cost
$13K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
68.7 years
Avg HCC Risk Score
0.58
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Estradiol
32
Estradiol (Twice Weekly)
Estradiol
19
Myrbetriq
Mirabegron
14
Fluconazole
13
Levothyroxine Sodium
11
Synthroid
Levothyroxine Sodium
11
Vilazodone Hcl
11
Armour Thyroid
"Thyroid
N/A
Progesterone
"Progesterone
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gynecology Physician Overview

How ELAINE EUSTIS, MD fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

ELAINE EUSTIS, MD's 384 claims are above the specialty average of 295.

Nearby Gynecology Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as EUSTIS.

Compare Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELAINE EUSTIS, MD's specialty?
ELAINE EUSTIS, MD specializes in Gynecology Physician and practices in MT. PLEASANT, South Carolina. Credentials: MD.
How much does ELAINE EUSTIS, MD prescribe under Medicare Part D?
In 2023, ELAINE EUSTIS, MD wrote 384 Medicare Part D claims totaling $54K in drug costs for 90 beneficiaries.
Where is ELAINE EUSTIS, MD located?
ELAINE EUSTIS, MD is located at 721 LONG POINT RD, MT. PLEASANT, SC, 29464. Phone: (843) 793-9801.
What is ELAINE EUSTIS, MD's NPI number?
ELAINE EUSTIS, MD's National Provider Identifier (NPI) is 1659358976, issued on 12/28/2005.
Does ELAINE EUSTIS, MD prescribe more brand-name or generic drugs?
ELAINE EUSTIS, MD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $39K in brand drug costs.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does ELAINE EUSTIS, MD prescribe most often?
Based on 2023 Medicare Part D data, ELAINE EUSTIS, MD's most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELAINE EUSTIS, MD accept Medicare?
ELAINE EUSTIS, MD appears in CMS Medicare data with 384 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELAINE EUSTIS, MD's credentials?
ELAINE EUSTIS, MD's NPI is 1659358976 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology